<?php

class ArchivosController extends Controller
{
	/**
	* @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	* using two-column layout. See 'protected/views/layouts/column2.php'.
	*/
	public $layout='//layouts/column2';

		/**
		* @return array action filters
		*/
	public function filters()
		{
			return array(
			'accessControl', // perform access control for CRUD operations
		);
	}

	/**
	* Specifies the access control rules.
	* This method is used by the 'accessControl' filter.
	* @return array access control rules
	*/
	public function accessRules()
	{
		return array(
		array('allow',  // allow all users to perform 'index' and 'view' actions
			'actions'=>array('index','view', 'create', 'admin'),
			//'users'=>array('@'),
			'roles'=>array('periodista')
		),
		array('allow', // allow authenticated user to perform 'create' and 'update' actions
			'actions'=>array('update'),
			//'users'=>array('@'),
			'roles'=>array('coordinador')
		),
		array('allow', // allow admin user to perform 'admin' and 'delete' actions
			'actions'=>array('delete'),
			//'users'=>array('@'),
			'roles'=>array('admin')
		),
		array('deny',  // deny all users
			'users'=>array('*'),
		),
		);
	}

	/**
	* Displays a particular model.
	* @param integer $id the ID of the model to be displayed
	*/
	public function actionView($id)
	{
		$this->render('view',array(
		'model'=>$this->loadModel($id),
		));
	}

	/**
	* Creates a new model.
	* If creation is successful, the browser will be redirected to the 'view' page.
	*/
	public function actionCreate()
	{
		$model=new Archivos;

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['Archivos']))
		{
			$model->attributes=$_POST['Archivos'];

			$archivo=CUploadedFile::getInstance($model,'archivo');

			$transaction = Yii::app()->db->beginTransaction(); // Transaction begin //Yii::app()->db->beginTransaction	
			try{
				
				$model->ruta='archivos/'.$model->titulo.'.'.TiposArchivos::model()->findByPk($model->tipo_archivo_id)->ext;
				$model->fecha_creacion = date('Y-m-d H:i:s');
				$model->creado_por = Yii::app()->user->id;
				//$model->thumbnail = null;
				if($model->save()){
					if(empty($archivo)){
						Yii::app()->user->setFlash('error','Debe especificar un archivo para subir al servidor.');
						throw new Exception("Error Processing Request", 1);
					}else
						if(!$archivo->saveAs($model->ruta))
							throw new Exception("Error Processing Request", 1);
					
					$transaction->commit();    // committing

					$this->redirect(array('view','id'=>$model->id));
			}else
				throw new Exception("No se guardo el archivo", 1);
				
			}catch (Exception $e){
			  	//echo 'Excepción capturada: '.$e;
			   	$transaction->rollBack();
			}
		}

		$this->render('create',array(
		'model'=>$model,
		));
	}

	/**
	* Updates a particular model.
	* If update is successful, the browser will be redirected to the 'view' page.
	* @param integer $id the ID of the model to be updated
	*/
	public function actionUpdate($id)
	{
		$model=$this->loadModel($id);

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['Archivos']))
		{
			$model->attributes=$_POST['Archivos'];
			if($model->save())
				$this->redirect(array('view','id'=>$model->id));

			$archivo=CUploadedFile::getInstance($model,'ruta');

			$transaction = Yii::app()->db->beginTransaction(); // Transaction begin //Yii::app()->db->beginTransaction	
			try{
				
				$model->ruta='images/'.$model->titulo.'.'.TiposArchivos::model()->findByPk($model->tipo_archivo_id)->ext;

				if($model->save()){
					if(!$archivo->saveAs($model->ruta))
						throw new Exception("Error Processing Request", 1);
					
					$transaction->commit();    // committing

					$this->redirect(array('view','id'=>$model->id));
			}else
				throw new Exception("No se guardo el archivo", 1);
				
			}catch (Exception $e){
			  	echo 'Excepción capturada: '.$e;
			   	$transaction->rollBack();
			}
		}

		$this->render('update',array(
		'model'=>$model,
		));
	}

	/**
	* Deletes a particular model.
	* If deletion is successful, the browser will be redirected to the 'admin' page.
	* @param integer $id the ID of the model to be deleted
	*/
	public function actionDelete($id)
	{
		if(Yii::app()->request->isPostRequest)
		{
		// we only allow deletion via POST request
		$this->loadModel($id)->delete();

		// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
		if(!isset($_GET['ajax']))
			$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
		}
		else
			throw new CHttpException(400,'Invalid request. Please do not repeat this request again.');
	}

		/**
		* Lists all models.
		*/
	public function actionIndex()
	{
/*		$dataProvider=new CActiveDataProvider('Archivos');
			$this->render('index',array(
			'dataProvider'=>$dataProvider,
		));*/
		$this->redirect(array('archivos/admin'));
	}

	/**
	* Manages all models.
	*/
	public function actionAdmin()
	{
		$model=new Archivos('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['Archivos']))
			$model->attributes=$_GET['Archivos'];

		$this->render('admin',array(
		'model'=>$model,
		));
	}

	/**
	* Returns the data model based on the primary key given in the GET variable.
	* If the data model is not found, an HTTP exception will be raised.
	* @param integer the ID of the model to be loaded
	*/
	public function loadModel($id)
	{
		$model=Archivos::model()->findByPk($id);
		if($model===null)
			throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}

	/**
	* Performs the AJAX validation.
	* @param CModel the model to be validated
	*/
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='archivos-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
}
